The process of rooting itself is not very risky, it's what you do with your device afterwards that can hold such risks. There's a step-by-step guide over at XDA Developers that'll guide you through the rooting process for the myTouch 4G.

The process of rooting itself is not very risky, it's what you do with your device afterwards that can hold such risks. There's a step-by-step guide over at XDA Developers that'll guide you through the rooting process for the myTouch 4G.